Mr. Mullen is the author of Recasting A Craft|St. Louis Typefounders Respond to Industrialization. The book was published by Southern Illinois University Press in 2005. The jacket-flap includes this information about him:
“Robert A. Mullen is the collections manager at the Missouri Historical Society, where he has curated several exhibits on St. Louis history and published articles and lectured about printing history.”
The final page reads:
“Robert A. Mullen works as the collections manager at the Missouri Historical Society in St. Louis, where he is responsible for the care and documentation of more than 120,000 historical objects. He has written numerous articles and spoken many times about printing history, riverboat history, and museum practices.
“He holds master’s degrees from the University of Wisconsin at La Cross in educational media and from Eastern Illinois University in historical administration. He and his wife, Carole, have operated Xanadu Press using only hand-set type for more than thirty years.”